US4404632A - Attitude control system for driver's seat - Google Patents

Attitude control system for driver's seat Download PDF

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Publication number
US4404632A
US4404632A US06/235,173 US23517381A US4404632A US 4404632 A US4404632 A US 4404632A US 23517381 A US23517381 A US 23517381A US 4404632 A US4404632 A US 4404632A
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United States
Prior art keywords
attitude
data
seat
control device
memory
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Expired - Fee Related
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US06/235,173
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English (en)
Inventor
Kuniyoshi Harada
Naofumi Fujie
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Aisin Corp
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Aisin Seiki Co Ltd
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Assigned to AISIN SEIKI KABUSHIKI KAISHA reassignment AISIN SEIKI KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FUJIE, NAOFUMI, HARADA, KUNIYOSHI
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0248—Non-manual adjustments, e.g. with electrical operation with logic circuits with memory of positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0277—Non-manual adjustments, e.g. with electrical operation with logic circuits characterised by the calculation method or calculation flow chart of sensor data for adjusting the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0278—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors external to the seat for measurements in relation to the seat adjustment, e.g. for identifying the presence of obstacles or the appropriateness of the occupants position
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
    • G05B19/23—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control
    • G05B19/238—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is only used to control speed in steps according to distance left, or to give a stop signal when error reaches zero
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/409—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panel; characterised by control panel details or by setting parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2220/00—Computerised treatment of data for controlling of seats
    • B60N2220/10—Computerised treatment of data for controlling of seats using a database
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41092—References, calibration positions for correction of value position counter
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45022—Auto seat, dentist chair, roll wheel chair

Definitions

  • the invention relates to a driver's seat in a vehicle.
  • a driver who drives a vehicle normally operates a steering wheel, an accelerator and/or brake pedal, a transmission and a number of switches in accordance with the traffic conditions, weather and road marks. It will be noted that the operating ends of these members or components are fixed in position while the physical features of the driver vary from driver to driver. Accordingly, a driver's seat is arranged to permit an adjustment of the forward or rearward movement, the elevation, the inclination and the cushioning to his preference. It will be understood that a single vehicle may be utilized by a plurality of drivers. Also, when a single driver is driving the vehicle, it may be desirable to adjust the attitude of the seat as he becomes tired or as the road condition varies such as a down or an up grade or a turning point. However, it is cumbersome to adjust the seat manually or each time a driver gets on the vehicle.
  • the positioning apparatus is associated with position sensors and a manual positioning apparatus so that when the manual apparatus is operated to adjust the attitude, data from the position sensors may be stored in a microcomputer in correspondence to an identification code. Later, the identification code may be inputted into the microcomputer, whereupon the attitude of the seat is established in accordance with the corresponding data stored.
  • the driver adjusts the attitude of the seat by reading data which is derived by a usual computer or adjusts the attitude of the seat automatically in accordance with the computer output, and hence the attitude of the seat is fixed in accordance with the physical features of the driver and the operating program, making it impossible or difficult to change the attitude from time to time and in accordance with the intent of a driver. It will be almost impossible to formulate an operating program which satisfies every driver.
  • the seat attitude is automatically established by entering the identification code once the driver has previously established the seat attitude to his preference and data indicative of such attitude is stored into the microcomputer in association with his identification code.
  • data indicative of such attitude is stored into the microcomputer in association with his identification code.
  • the storage of optimum data is essential in this arrangement, and an unexperienced driver or a driver who fails to realize his optimum attitude may produce an entry of unreasonable attitude, presenting difficulty in the establishment of optimum data.
  • a second object is to provide an attitude control system for driver's seat in which once data indicative of a desired attitude of the seat is stored in a memory, the desired attitude is automatically established in response to the entry of an identification code of the driver.
  • the above objects are achieved in accordance with the invention by storing in a semiconductor memory standard data used for establishing the attitude in accordance with the physical features, and entering data indicative of the physical features of a driver into a microcomputer to read one of standard data which corresponds thereto, thereby allowing the attitude of the seat to be automatically established.
  • the attitude of the seat can be changed in response to a manual switch operation and/or key operation.
  • the attitude of the seat which has been established is stored in a non-volatile semiconductor memory in corresponding relationship with an identification code. Whenever the identification code is inputted, the corresponding attitude data stored in the non-volatile memory is read out, thereby allowing the attitude represented by such data to be automatically established.
  • an unexperienced driver is capable of automatically establishing the seat at its standard attitude assigned to that particular driver in response to the entry of data indicative of his physical features, thus preventing an unreasonable attitude from being established.
  • a switch operation and/or key operation permits the attitude to be changed to the preference of the driver.
  • the attitude data which has been previously changed is stored in the microcomputer in response to the entry of his identification code and the memory specified by the particular key, and is subsequently read out in response to the identification code, allowing the attitude which has once been established and changed to be automatically established.
  • the seat is established at standard attitude which corresponds to the physical features of a particular driver.
  • a passable attitude of the seat is initially established for an unexperienced driver.
  • a switch operation and/or key operation permits the attitude of the seat to be further changed.
  • an identification code is assigned and a key is operated to store the data, whereupon the data indicative of the attitude of the seat is stored in the non-volatile memory, permitting such attitude to be automatically established in response to a subsequent entry of the identification code.
  • the establishment of the seat attitude initially takes place utilizing standard data sotred in the microcomputer and can be adjusted by the driver at will subsequently.
  • the desired attitude of the seat can be stored in the memory by a key operation.
  • the entry of the identification code is all that is required to establish the seat at the attitude corresponding to the stored data, in an automatic manner.
  • the stored data can be simply changed.
  • FIG. 1 is a perspective view illustrating the appearance of one embodiment of the invention
  • FIG. 2 is a side elevation of an attitude controlling mechanism as mounted on the seat shown in FIG. 1;
  • FIG. 3 is a perspective view of another mechanism located below the seat base shown in FIG. 1;
  • FIG. 4a is a cross section of the nut unit shown in FIG. 3, taken in a direction perpendicular to a threaded bolt;
  • FIG. 4b is a cross section taken along the line IVB--IVB in FIG. 4a;
  • FIG. 4c is an enlarged perspective view of the coupling between the motor and the nut unit
  • FIG. 4d graphically illustrates the waveform of an output signal from the phototransistor unit shown in FIG. 4c;
  • FIG. 5 is an exploded perspective view of the seat back shown in FIG. 1;
  • FIG. 6 is an enlarged perspective view of an operating board shown in FIG. 1;
  • FIG. 7 is a block diagram illustrating the interconnection between electrical elements mounted on the operating board.
  • FIGS. 8a and 8b are flowcharts generally illustrating the operation of the microcomputer shown in FIG. 7.
  • FIG. 1 shows the appearance of one embodiment of the invention in perspective view
  • a driver's seat 10 is formed by a seat body 11 and a seat back 12 which is angularly movable with respect thereto.
  • An operating board 13 is fixedly mounted on the seat body 11.
  • An attitude controlling mechanism which is mounted on the seat body 11 and the seat back 12 is schematically illustrated in FIG. 2.
  • the attitude controlling mechanism includes a seat forward/reverse drive mechanism 100 which causes a seat base supporting the seat body 11 to slide in the forward or reverse direction with respect to a base frame which is fixedly mounted on the floor of a vehicle, a seat front elevation adjusting mechanism 200 which elevates or lowers the front of the seat base, a seat rear elevation adjusting mechanism 300, a seat back tilting mechanism 400 pivotally mounted on the seat base for adjusting the angle of inclination of the seat back with respect to the frame, and a seat back cushion adjusting mechanism 500 which adjusts the spring cushion contained in the seat back.
  • the combination of the seat front and the seat rear elevation adjusting mechanism 200, 300 determines the inclination of the seat body 11, and thus defines a seat base tilting mechanism.
  • FIG. 3 The mechanism located below the seat base which supports the seat body 11 is shown in FIG. 3.
  • a pair of base frames 14 1 , 14 2 are secured to the floor of the vehicle, and a pair of lower rails 15 1 , 15 2 are fixedly mounted thereon.
  • a pair of upper rails 16 1 , 16 2 slidably rest on the lower rails 15 1 , 15 2 , respectively.
  • a pair of arms 17 11 , 17 12 are fixedly mounted on the upper rail 16 1 while a pair of arms 17 21 , 17 22 are fixedly mounted on the upper rail 16 2 .
  • the arms 17 11 , 17 12 fixedly carry a threaded bolt 18 1 while the arms 17 21 , 17 22 fixedly carry another threaded bolt 18 2 .
  • the threaded bolts 18 1 , 18 2 threadably engage nut units 110, 120, respectively, which are fixedly mounted on the base frames 14 1 , 14 2 , respectively.
  • the both nut units 110, 120 constitute together the seat forward/reverse drive mechanism 100, and includes a pair of nuts 111, 121 each having a threaded bore formed therein which is engaged by an associated one of the threaded bolts 18 1 , 18 2 , and having teeth formed around its outer periphery, and worm gears meshing with the nuts 111, 121, respectively. These worm gears are coupled together by a flexible shaft 130.
  • a bevel gear is fixedly mounted on the shaft on which the worm gear is mounted and meshes with another bevel gear which is fixedly mounted on the shaft of a motor M1. Since these units 110, 120 are secured to the respective base frames 14 1 , 14 2 , it will be seen that when the motor M1 is energized for rotation, the inner shaft of the flexible shaft 130 rotates to cause a rotation of the worm gear, thus rotating the meshing nuts 111, 121 which in turn forward the threaded bolts 18 1 , 18 2 , respectively.
  • the seat front elevation adjusting mechanism 200 includes a nut unit 210 constructed in the same manner as the unit 120, a motor M2, a rocking arm 220, a rod 230 integrally secured to the arm 220, a link arm 240 integrally secured to the rod 230, and a base arm 250 pivotally connected with the link arm 240 and to which the seat base (not shown) is fixedly connected.
  • a rotation of the motor M2 in the forward or reverse direction causes the nut unit 210 to move either forwardly or reversely along the threaded bolt 18 2 , thereby turning the rod 230 and the link arm 240 clockwise and counter-clockwise, respectively, to thereby move the base arm 250 in the vertical direction.
  • FIG. 4a is an enlarged cross section of the nut unit 210 through a plane including the rod 230 while FIG. 4b shows a section thereof taken along the line IVB--IVB.
  • the nut is shown at 211 which meshes with a worm 212 mounted on a worm shaft 213 which is coupled with a motor shaft 214.
  • FIG. 4c shows, in exploded perspective view, the coupling between the motor M2 and the nut unit 210.
  • the motor M2 includes an end plate 216 on which a phototransistor unit P sr , representing a photocoupler, is fixedly mounted.
  • a rotary slitted disc 217 is fixedly mounted on the motor shaft 214, and a light emitting unit P se of the photocoupler is fixedly mounted on a fixing sleeve 215 in opposing relationship with the phototransistor unit P sr with the slitted disc 217 interposed therebetween. Consequently, when the motor M2 is fixedly mounted on the nut unit 210 as shown in FIG. 3, signals A and B of waveforms as shown in FIG. 4d are developed by the phototransistor unit P sr as the motor M2 rotates in the forward or reverse direction. These signals A, B are used to detect the direction of rotation of the motor M2 and to detect the attitude and the position, as will be further described later.
  • each of the motors M1, M2 described above as well as motors M3 to M5 to be described later is associated with a slitted disc and a sensor unit P se , P sr to produce a pair of signals A, B from each motor unit.
  • the seat rear elevation adjusting mechanism 300 is constructed in quite the same manner as the mechanism 200, and therefore will not be described in detail.
  • the seat back tilting mechanism 400 is generally similar to the seat forward/reverse drive mechanism and includes a nut unit and a motor M4. Referring to FIG. 2 for describing it, it includes a nut unit 410 which is secured to the seat base (not shown, but is fixedly mounted on a member 250). A threaded bolt 18 3 threadably engages the nut unit 410, and has its one end pivotally connected to one end of a link arm 440, the other end of which is pivotally connected to a seat back arm 450 which is in turn fixedly mounted on the seat back frame. As the motor M4 rotates either forwardly or reversely, the seat back 12 is turned either clockwise or counter-clockwise.
  • the seat back 12 includes a torsion spring 12a, the resilience of which is adjusted by the seat back cushion control mechanism 500.
  • a nut unit 510 is fixedly mounted on the seat back frame 12b, and is threadably engaged by a threaded bolt 18 4 , one end of which is coupled to one end of the torsion spring 12a.
  • the threaded bolt By rotating the motor M5 either forwardly or reversely, the threaded bolt translates to the left or right, whereby a lumber plate 12c coupled to the other end of the torsion spring 12a advances or retracts.
  • the five mechanisms which are used to establish a desired attitude include limit switches LS h1 -LS h5 and LS m1 -LS m5 which are located at the standby (or home) position and the maximum travel (limit position) and which are closed as a movable member moves close thereto.
  • FIG. 6 shows an enlarged perspective view of the operating board 13.
  • the operating board 13 is provided with eight digit 7-segment displays 13 CD , operation keys 13 P1 -13 P7 , ten keys 13t 0 -13t 9 and a keyboard power switch 13 PS .
  • Light emitting diodes LD 1 -LD 12 are mounted on the inside of the individual key buttons of the operation keys 13 P1 -13 P7 and the ten keys 13t 1 -13t 5 .
  • FIG. 7 shows a block diagram of electrical elements which are mounted on the operating board.
  • the principal component is a microcomputer which comprises a central processing unit CPU, a semiconductor read-only memory ROM, a semiconductor read-write memory RAM, a non-volatile read-write semiconductor memory NRAM, a clock pulse oscillator OS, a battery backup element BE, an input/output port I/O, a data bus and an address bus.
  • the switch terminals of the operation keys 13 P1 -13 P7 and the ten keys 13t 0 -13t 9 Connected to the input/output port I/O are the switch terminals of the operation keys 13 P1 -13 P7 and the ten keys 13t 0 -13t 9 , a decoder associated with a circuit which energizes the light emitting diodes LD 1 -LD 12 , a circuit which energizes the character displays 13 cd , a multiplexer which reads the limit switches LS h1 -LS h5 and LS m1 -LS m5 , a data selector DES, a multiplexer MP and a motor energizing circuit MD.
  • a count code from five up/down counter CO1-CO5 is supplied to the data selector DES, and these counters are cleared by an output from the multiplexer MP.
  • Each of the counters CO1-CO5 has a pair of pulse inputs which are connected with one of up-down circuits 101-105.
  • the up-down circuit 101 includes a D flipflop F1 which is set as a CK input changes from the low or "0" to “1” level when a D input is high or at “1” level and which is reset as the CK input changes from “0" to "1” level when the D input is “0.”
  • the circuit 101 also includes an AND gate A1 which receives the Q output of the flipflop F1 and the signal A and which has its output connected to the up count input of the counter CO1, and another AND gate A2 which receives the Q output of the flipflop F1 and the signal A and which has its output connected to the down count input of the counter CO1.
  • a count in the counter CO1 represents the seat advanced position referenced to the home position.
  • Other circuits 202 to 205 are similarly constructed as the counter 201. It will be understood that the count in the counters CO2-CO5 represents the elevation of the seat front, the elevation of the seat rear, the inclination of the seat back and the resilience of the seat back cushion (or the position of the lumber plate 12c), respectively.
  • Program data Stored in the ROM of the microcomputer are program data which detects the closure of a switch contact in response to the depression of one of keys 13 P1 -13 P7 and 13t 0 -13t 9 , program data which latches one of the light emitting diodes illuminated which corresponds to the depressed key, display program data for indicating the key number on the display 13 CD , program data which controls the read or write operation from the NRAM, an arithmetic operation and the energization of the motors M1 to M5 in response to a key operation, and a variety of constants data.
  • the most significant one of the constants data is attitude standard data. The operation of the microcomputer based on these data can be summarized as follows.
  • the specified mechanism is driven in the forward direction (in a direction from the home position toward the limit position) as long as the key 13 P6 "FORWARD/UP" is held depressed, and is driven in the reverse direction as long as the key 13 P7 is held depressed.
  • No. 1 and No. 2 are allocated to principal drivers to prevent them from appearing in either unregistered indication "PE . . . " and registered indication "PF . . . .”
  • the registering or rewriting of No. 1 and No. 2 can be achieved in the similar manner as No. 3 to No. 8.
  • the current attitude data is written into the attitude data zone of the NRAM while the target attitude data is written into the attitude data zone of the RAM. Consequently, when the power is turned off on the operating board 13, the power supply to the various circuits shown in FIG. 7 except the NRAM is turned off, whereby the count code is the counters CO1-CO5 is cleared. However, the data which indicates the current attitude is retained in the attitude data zone of the NRAM, and the attitude data in association with the identification code is retained in the NRAM. Consequently, when the power is turned on again, the prevailing attitude is indicated by the attitude data in the NRAM.
  • the attitude data which is registered in the NRAM in association with the identification code is read out into the RAM and is defined as a target data.
  • the key 13 P3 "SET" is depressed, the mechanisms 100 to 500 are driven to the target positions while maintaining reference to the current attitude data (the attitude data zone in the NRAM).
  • the data in the counters CO1-CO5 is entered into the attitude data zone of the NRAM.
  • the standard attitude data (the constants data in the ROM) cover twelve values of the physical stature from 140 cm to 195 cm in increment of 5 cm. Each value of the physical stature is formed by five codes corresponding to the count data in the counters CO1-CO5. In this manner, the physical feature is figured in terms of the physical stature. By inputting the physical stature by means of the ten keys, the read-out of the standard attitude data or a calculation is made. If the stature input is equal to 140, 175 or 180, corresponding attitude data is read from the ROM and then stored in the RAM.
  • an interpolation is made by adding to the data corresponding to the physical stature of 165 a value which is equal to the data corresponding to the stature of 170 minus the data corresponding to the stature of 165 multiplied by 2/5 and rounding off figures less significant than the floating point.
  • the resulting value is stored in the attitude data zone of the RAM.
  • FIGS. 8a and 8b show flowcharts for operating the microcomputer. It is to be understood that in these flowcharts, the constants data storing zones of the ROM are referred to as memory 1, memory 2, . . . while the storing zones of the NRAM are referred to as non-volatile memory 1, 2, . . . . The storing zones of the RAM are referred to as the registers. Principal contents of these memories are indicated below.
  • FIGS. 8a and 8b a manupulation by the driver and a corresponding operation of the microcomputer will now be described.
  • the power switch 13PS is turned on to energize the microcomputer.
  • the microcomputer is adapted to turn on the power to the various circuits connected therein in a given sequence and to clear memories in the internal RAM and the external RAM of CPU as well as I/O latches (initialization). It then waits for a key input.
  • the establishment of a standard attitude (the central branch of FIG. 8a and a branch shown in FIG. 8b which is connected thereto) will be described first.
  • the microcomputer When the driver depresses the key 13 P1 "CODE,” the microcomputer latches the light emitting diode corresponding to that key in its illuminated condition and stores the on condition of the key 13 P1 . The latching of the diode and the storage of the on condition of the key 13 P1 are maintained until another one of the keys 13 P2 to 13 P5 is turned on.
  • the microcomputer waits for an input from the ten keys 13t 0 -13t 9 , and whenever a three digit input indicative of the stature in units of centimeters is applied, it displays them on the display 13 CD in the sequence of inputted digits. Assume now that an input is equal to 167.
  • the motor M1 Since it is of a negative polarity, the motor M1 is energized to rotate in the reverse direction, and the rotation of the motor M1 in the reverse direction is interrupted or stopped when the count in the counter CO1 becomes equal to 100.
  • the limit switch LS m1 When the limit switch LS m1 is turned on during the rotation of the motor in the forward direction, such rotation is interrupted and is inhibited as long as the limit switch remains on.
  • the limit switch LS h1 When the limit switch LS h1 is turned on, the rotation in the reverse direction is interrupted and is inhibited as long as the limit switch remains on.
  • the counter CO1 is cleared when the limit switch is turned on.
  • the motors M2 to M5 are specified when the keys 13t 2 to 13t 5 , respectively, are turned on. Such condition is stored in the register 11, and the corresponding light emitting diode is latched in its illuminated condition while waiting for the key 13 P6 or 13 P7 to be turned on. If the key 13 P6 is turned on, the light emitting diode which corresponds to that key is energized for illumination only during the time the key is maintained on, and one of the motors (M1 to M5) which is specified by the data stored in the register 11 is energized for rotation in the forward direction. If the motor M1 is energized at this time, the limit switch LS mi is monitored until it is turned on, whereupon the rotation in the forward direction is interrupted.
  • the motor continues to be energized to rotate in the forward direction as long as the key 13 P6 remains on.
  • the motor ceases to be energized for rotation in the forward direction, and the light emitting diode corresponding to that key is deenergized.
  • the key 13 P7 is turned on, the light emitting diode which corresponds to this key is maintained illuminated only during the time this key remains on, and the motor specified by the data stored in the register 11 is energized to rotate in the reverse direction. If the motor M1 is energized, the limit switch LS hi is monitored until it is turned on, whereupon the rotation in the reverse direction is interrupted and the counter CO1 is cleared.
  • the keys 13t 1 to 13t 4 are utilized to specify one of the motors M1 to M5 or the attitude controlling mechanisms 100 to 500 while the depression of the keys 13 P6 and 13 P7 permits an arbitrary adjustment of the position of the respective mechanisms.
  • the counts in the counters CO1 to CO5 are stored in the non-volatile memory 9.
  • the depression of the key 13 P2 , "PROGRAM" by the driver causes the microcomputer to reset the storage of the on condition of other keys 13 P1 , 13 P3 to 13 P5 and to terminate the latching of the illuminated condition of their associated light emitting diodes, and causes it to store the on condition of the key 13 P1 and to latch its associated light emitting diode in its illuminated condition.
  • the microcomputer checks if there is attitude data in the non-volatile memories 8-3, and if it finds that no attitude data is present, it indicates the memory number in which no attitude data is present on the first to the sixth digit of the display 13 CD .
  • attitude data is absent in either one of the non-volatile memories 8-3, "E” and “P” are displayed on the seventh and the eighth digit, respectively. If all of the non-volatile memories 8-3 contain attitude data, the numerals 8 to 3 are successively displayed on the first to the sixth digit, and "F” and "P” are displayed on the seventh and the eighth digit, respectively.
  • the microcomputer then waits for the ten keys 13t 1 to 13t 8 to be turned on. When they are turned on, the display is cleared while the number of the inputted key is displayed. Representing the number of the inputted key as "1," the prevailing count code in the counters CO1 to CO5 is stored as attitude data in the non-volatile memory "1.”
  • the attitude data stored in the non-volatile memory "i" is written into the register 9, subsequently waiting for the depression of the key 13 P3 "SET.”
  • each code of the data stored in the non-volatile memory 9 is sequentially compared against each code of the target data stored in the register 9, thus sequentially controlling the energization of the motors M1 to M5 of the mechanisms 100 to 500.
  • the count code in the counters CO1 to CO5 is stored in the non-volatile memory 9, and the microcomputer returns to the initialization.
  • the described arrangement permits the driver to achieve an automatic establishment of a standard attitude by initially inputting his stature and to adjust the attitude as required by a key operation.
  • the driver can then input his identification code key (1-8) to register the corresponding attitude data into one of the non-volatile memories 1-8.
  • the driver is subsequently enabled to re-establish the registered attitude by a mere depression of his identification code key even after the power supply to the operating board has been once interrupted and then turned on again. Since the initial establishment of the attitude takes place in response to only the inputting of stature data which is standardized, no convenience is experienced. Subsequently, the attitude can be adjusted to his preference by a key operation. If the driver then registers his attitude data, a one-touch key action is all that is required subsequently in order to establish the same attitude automatically.
  • the manual adjustment can be achieved by means other than a key operation.
  • the motor controlling circuit MD may be directly coupled with a forward/reverse control switch, which may be manually operated to achieve the manual adjustment.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Seats For Vehicles (AREA)
US06/235,173 1980-03-31 1981-02-17 Attitude control system for driver's seat Expired - Fee Related US4404632A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4133880A JPS56138024A (en) 1980-03-31 1980-03-31 Driver's seat
JP55/41338 1980-03-31

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US4404632A true US4404632A (en) 1983-09-13

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US (1) US4404632A (en, 2012)
JP (1) JPS56138024A (en, 2012)
DE (1) DE3107048A1 (en, 2012)
FR (1) FR2479110A1 (en, 2012)
GB (1) GB2072881B (en, 2012)

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US4477874A (en) * 1980-11-25 1984-10-16 Nippondenso Co., Ltd. Card-operated control system for vehicle components
US4503504A (en) * 1981-08-21 1985-03-05 Aisin Seiki Kabushiki Kaisha Attitude controlling device for a steering wheel
US4706194A (en) * 1985-12-13 1987-11-10 United Technologies Automotive, Inc. Multiplex control system for memory seat or the like load
US4707788A (en) * 1984-07-10 1987-11-17 Nippon Soken, Inc Automatic adjuster for automobile driver equipment
US4775939A (en) * 1984-09-10 1988-10-04 Aisin Seiki Kabushikikaisha Attitude controlling system for vehicle-supported equipment
US4797824A (en) * 1984-01-31 1989-01-10 Ikeda Bussan Co. Ltd. Automatic headrest positioning apparatus for seat of motor vehicles
US4808897A (en) * 1986-04-11 1989-02-28 Ikeda Bussan Co., Ltd. Apparatus for controlling a seat for vehicles
US4809180A (en) * 1986-04-22 1989-02-28 Ikeda Bussan Co., Ltd. Seat control apparatus for vehicle
US4811226A (en) * 1980-09-30 1989-03-07 Toyota Jidosha Kogyo Kabushiki Kaisha Optimum angle adjusting apparatus for vehicle equipments
US4813721A (en) * 1986-09-16 1989-03-21 Fiat Auto S.P.A. Apparatus for adjusting the inclination of a vehicle rear seat
US4845620A (en) * 1987-12-22 1989-07-04 United Technologies Automotive, Inc. Control arrangement for vehicle memory seat
US4881020A (en) * 1985-08-13 1989-11-14 Aisin Seiki Kabushiki Kaisha Apparatus for controlling attitude of vehicle mounted device
US4907153A (en) * 1987-08-24 1990-03-06 Brodsky Stephen L Automobile seat position control system
US4922170A (en) * 1988-01-05 1990-05-01 Kabushiki Kaisha Imasen Denki Seisakusho Automotive power seat assembly
US4967178A (en) * 1985-03-18 1990-10-30 Niles Parts Co., Ltd. Apparatus for controlling a seat for vehicles
US5004967A (en) * 1990-03-16 1991-04-02 Tachi-S Co., Ltd. Method and device for controlling slide motion of a vehicle seat
US5038085A (en) * 1989-04-04 1991-08-06 Daimler-Benz Ag Method for controlling adjustment devices of a motor vehicle seat for adjustment of the seat
US5048886A (en) * 1989-03-31 1991-09-17 Aisin Seiki Kabushiki Kaisha Power seat slide device for vehicles
DE4108295A1 (de) * 1990-03-16 1991-09-19 Jidosha Denki Kogyo Kk Motorsitzvorrichtung
US5197007A (en) * 1991-04-30 1993-03-23 United Technologies Automotive, Inc. Control system for vehicle memory seat recall positioning
US5253138A (en) * 1989-07-04 1993-10-12 Ets Cousin Freres Simplified supplying system of the position identification potentiometers of electronic memory mechanisms of a motor for setting automobile vehicle seats and the like
US5272633A (en) * 1989-09-13 1993-12-21 Gebr. Isringhausen Vehicle seat
US5406270A (en) * 1992-06-29 1995-04-11 Prince Corporation Dead switch vehicle operator identification
US5406183A (en) * 1993-09-15 1995-04-11 Tomovic; Joseph F. Integrated reversible load controller
US5497326A (en) * 1994-08-03 1996-03-05 The Cherry Corporation Intelligent commutation pulse detection system to control electric D.C. motors used with automobile accessories
US5521823A (en) * 1991-09-03 1996-05-28 Mazda Motor Corporation Learning control vehicle
US5751129A (en) * 1996-10-04 1998-05-12 Invotronics Manufacturing Memory seat module having integrated sensors
US6195603B1 (en) 1995-08-11 2001-02-27 Lear Corporation Multiple speed vehicle seat memory control apparatus
GB2369689A (en) * 2000-10-19 2002-06-05 Lear Corp Adjustable vehicle seat with integrated motor, sensors and electronics
WO2003001946A1 (en) * 2001-06-27 2003-01-09 Koninklijke Philips Electronics N.V. Seating device for avoiding ergonomic problems
US20030038221A1 (en) * 2001-05-30 2003-02-27 National Seating Company Truck seat height positioning system
GB2384173A (en) * 2001-11-22 2003-07-23 Smartasystems Ltd Reconfigurable chair with coded handset
US20040122574A1 (en) * 2002-12-19 2004-06-24 Inman Robert R. Method for adjusting vehicle cockpit devices
US7051986B1 (en) 1998-04-06 2006-05-30 Brose Fahrzeugteile Gmbh & Co., Kg Spindle and worm drive for adjusting devices in motor vehicles
US20080000957A1 (en) * 2007-06-29 2008-01-03 Faurecia Automotive Seating Canada Limited Method of counting drive motor rotations, and memory modules, storage media, and motor and vehicle apparatuses utilizing same
US20090000424A1 (en) * 1998-04-06 2009-01-01 Brose Fahrzeugteile Gmbh & Co. Kg Spindle or worm drive for adjusting devices in motor vehicles
FR2994134A1 (fr) * 2012-08-03 2014-02-07 Faurecia Sieges Automobile Siege de vehicule comportant une partie reglable motorisee, unite electrique de commande de vehicule automobile
US20140052343A1 (en) * 2012-08-14 2014-02-20 Philip Ta-te Chen Apparatus and method for storing and retrieving seating and instrument positions
CN111907543A (zh) * 2020-08-26 2020-11-10 青岛威奥轨道股份有限公司 一种轨道列车商务区坐卧两用座椅
CN114572068A (zh) * 2022-01-28 2022-06-03 中国第一汽车股份有限公司 一种基于卷积神经网络的电动座椅调节方法、装置及车辆

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US4811226A (en) * 1980-09-30 1989-03-07 Toyota Jidosha Kogyo Kabushiki Kaisha Optimum angle adjusting apparatus for vehicle equipments
US4477874A (en) * 1980-11-25 1984-10-16 Nippondenso Co., Ltd. Card-operated control system for vehicle components
US4503504A (en) * 1981-08-21 1985-03-05 Aisin Seiki Kabushiki Kaisha Attitude controlling device for a steering wheel
US4797824A (en) * 1984-01-31 1989-01-10 Ikeda Bussan Co. Ltd. Automatic headrest positioning apparatus for seat of motor vehicles
US4707788A (en) * 1984-07-10 1987-11-17 Nippon Soken, Inc Automatic adjuster for automobile driver equipment
US4775939A (en) * 1984-09-10 1988-10-04 Aisin Seiki Kabushikikaisha Attitude controlling system for vehicle-supported equipment
US4967178A (en) * 1985-03-18 1990-10-30 Niles Parts Co., Ltd. Apparatus for controlling a seat for vehicles
US4881020A (en) * 1985-08-13 1989-11-14 Aisin Seiki Kabushiki Kaisha Apparatus for controlling attitude of vehicle mounted device
US4706194A (en) * 1985-12-13 1987-11-10 United Technologies Automotive, Inc. Multiplex control system for memory seat or the like load
US4808897A (en) * 1986-04-11 1989-02-28 Ikeda Bussan Co., Ltd. Apparatus for controlling a seat for vehicles
US4809180A (en) * 1986-04-22 1989-02-28 Ikeda Bussan Co., Ltd. Seat control apparatus for vehicle
US4813721A (en) * 1986-09-16 1989-03-21 Fiat Auto S.P.A. Apparatus for adjusting the inclination of a vehicle rear seat
US4907153A (en) * 1987-08-24 1990-03-06 Brodsky Stephen L Automobile seat position control system
US4845620A (en) * 1987-12-22 1989-07-04 United Technologies Automotive, Inc. Control arrangement for vehicle memory seat
US4922170A (en) * 1988-01-05 1990-05-01 Kabushiki Kaisha Imasen Denki Seisakusho Automotive power seat assembly
US5048886A (en) * 1989-03-31 1991-09-17 Aisin Seiki Kabushiki Kaisha Power seat slide device for vehicles
US5038085A (en) * 1989-04-04 1991-08-06 Daimler-Benz Ag Method for controlling adjustment devices of a motor vehicle seat for adjustment of the seat
US5253138A (en) * 1989-07-04 1993-10-12 Ets Cousin Freres Simplified supplying system of the position identification potentiometers of electronic memory mechanisms of a motor for setting automobile vehicle seats and the like
US5272633A (en) * 1989-09-13 1993-12-21 Gebr. Isringhausen Vehicle seat
US5004967A (en) * 1990-03-16 1991-04-02 Tachi-S Co., Ltd. Method and device for controlling slide motion of a vehicle seat
DE4108295A1 (de) * 1990-03-16 1991-09-19 Jidosha Denki Kogyo Kk Motorsitzvorrichtung
US5179328A (en) * 1990-03-16 1993-01-12 Jidosha Denki Kogyo K.K. Power seat apparatus
US5197007A (en) * 1991-04-30 1993-03-23 United Technologies Automotive, Inc. Control system for vehicle memory seat recall positioning
US5521823A (en) * 1991-09-03 1996-05-28 Mazda Motor Corporation Learning control vehicle
US5406270A (en) * 1992-06-29 1995-04-11 Prince Corporation Dead switch vehicle operator identification
US5406183A (en) * 1993-09-15 1995-04-11 Tomovic; Joseph F. Integrated reversible load controller
US5497326A (en) * 1994-08-03 1996-03-05 The Cherry Corporation Intelligent commutation pulse detection system to control electric D.C. motors used with automobile accessories
US6195603B1 (en) 1995-08-11 2001-02-27 Lear Corporation Multiple speed vehicle seat memory control apparatus
US5751129A (en) * 1996-10-04 1998-05-12 Invotronics Manufacturing Memory seat module having integrated sensors
US7051986B1 (en) 1998-04-06 2006-05-30 Brose Fahrzeugteile Gmbh & Co., Kg Spindle and worm drive for adjusting devices in motor vehicles
US20090000424A1 (en) * 1998-04-06 2009-01-01 Brose Fahrzeugteile Gmbh & Co. Kg Spindle or worm drive for adjusting devices in motor vehicles
US7437962B2 (en) 1998-04-06 2008-10-21 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Spindle or worm drive for adjusting devices in motor vehicles
US20070051047A1 (en) * 1998-04-06 2007-03-08 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Spindle or worm drive for adjusting devices in motor vehicles
US7143513B2 (en) 1998-04-06 2006-12-05 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Method of forming a housing for gear elements
GB2369689A (en) * 2000-10-19 2002-06-05 Lear Corp Adjustable vehicle seat with integrated motor, sensors and electronics
US20030038221A1 (en) * 2001-05-30 2003-02-27 National Seating Company Truck seat height positioning system
WO2003001946A1 (en) * 2001-06-27 2003-01-09 Koninklijke Philips Electronics N.V. Seating device for avoiding ergonomic problems
GB2384173A (en) * 2001-11-22 2003-07-23 Smartasystems Ltd Reconfigurable chair with coded handset
US6981745B2 (en) 2001-11-22 2006-01-03 John Christopher Rees Reconfigurable chair
GB2384173B (en) * 2001-11-22 2005-05-11 Smartasystems Ltd A power adjustable chair with coded handset.
US20040212181A1 (en) * 2001-11-22 2004-10-28 Rees John Christopher Reconfigurable chair
US20040122574A1 (en) * 2002-12-19 2004-06-24 Inman Robert R. Method for adjusting vehicle cockpit devices
US6993423B2 (en) 2002-12-19 2006-01-31 General Motors Corporation Method for adjusting vehicle cockpit devices
US7750588B2 (en) * 2007-06-29 2010-07-06 Faurecia Automotive Seating Canada Limited Method of counting drive motor rotations, and memory modules, storage media, and motor and vehicle apparatuses utilizing same
US20080000957A1 (en) * 2007-06-29 2008-01-03 Faurecia Automotive Seating Canada Limited Method of counting drive motor rotations, and memory modules, storage media, and motor and vehicle apparatuses utilizing same
FR2994134A1 (fr) * 2012-08-03 2014-02-07 Faurecia Sieges Automobile Siege de vehicule comportant une partie reglable motorisee, unite electrique de commande de vehicule automobile
DE102013012539B4 (de) * 2012-08-03 2014-11-27 Faurecia Sièges d'Automobile Fahrzeugsitz mit motorisch einstellbarem Abschnitt, sowie elektonische Steuereinheit für einen Fahrzeugsitz
US9344013B2 (en) 2012-08-03 2016-05-17 Faurecia Sièges d'Automobile Vehicle seat comprising a motorized adjustable part, electric control unit of a motor vehicle
US20140052343A1 (en) * 2012-08-14 2014-02-20 Philip Ta-te Chen Apparatus and method for storing and retrieving seating and instrument positions
CN111907543A (zh) * 2020-08-26 2020-11-10 青岛威奥轨道股份有限公司 一种轨道列车商务区坐卧两用座椅
CN114572068A (zh) * 2022-01-28 2022-06-03 中国第一汽车股份有限公司 一种基于卷积神经网络的电动座椅调节方法、装置及车辆

Also Published As

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DE3107048C2 (en, 2012) 1988-04-07
DE3107048A1 (de) 1981-12-24
FR2479110B1 (en, 2012) 1985-02-22
GB2072881A (en) 1981-10-07
GB2072881B (en) 1983-11-09
JPS56138024A (en) 1981-10-28
FR2479110A1 (fr) 1981-10-02

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